802601819802 has 80 divisors (see below), whose sum is σ = 1830528300744. Its totient is φ = 262770480000.

The previous prime is 802601819797. The next prime is 802601819827. The reversal of 802601819802 is 208918106208.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 353381502681 + 449220317121 = 594459^2 + 670239^2 .

It is a super-2 number, since 2×802601819802² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6869352 + ... + 6985212.

Almost surely, 2^802601819802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 802601819802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (915264150372).

802601819802 is an abundant number, since it is smaller than the sum of its proper divisors (1027926480942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

802601819802 is a wasteful number, since it uses less digits than its factorization.

802601819802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116637 (or 116628 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The spelling of 802601819802 in words is "eight hundred two billion, six hundred one million, eight hundred nineteen thousand, eight hundred two".